Journal Article

PUBDB-2024-07923

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png X-ray Phase Contrast Imaging and Diffraction in the Laser-heated Diamond Anvil Cell: A case study on the high-pressure melting of Pt

Ehrenreich-Petersen, E. (Corresponding author) ; Massani, B.Extern* ; Engler, T.DESY* ; Pardo, O.Extern*XFEL.EU* ; Glazyrin, K.XFEL.EU*DESY* ; Giordano, N.DESY* ; Hagemann, J.DESY* ; Sneed, D.Extern* ; Fedotenko, T.Extern*DESY* ; Campbell, D.Extern* ; Wendt, M.DESY* ; Wenz, S.DESY* ; Schroer, C.XFEL.EU*DESY* ; Trabs, M. ; Mcwilliams, R. S.Extern* ; Liermann, H.-P.DESY* ; Jenei, Z.Extern* ; O’Bannon, E. F. (Corresponding author)

2025
Elsevier Amsterdam [u.a.]

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Please use a persistent id in citations: doi:10.1016/j.rinp.2025.108132  doi:10.3204/PUBDB-2024-07923

Abstract: Melting temperatures of materials at high-pressure are one of the key physical properties that can be measured. However, large discrepancies in high-pressure melt lines exist between different experimental and theoretical approaches. In this paper, we present a novel approach for melting determination at high pressure where time-resolved synchrotron X-ray phase contrast imaging is used to observe the solid to liquid phase transition in laser heated samples in the diamond anvil cell along with simultaneous X-ray diffraction. Optical radiometric temperature measurements are correlated with the observed phase boundaries determined from X-ray phase contrast images and structural information from X-ray diffraction patterns to determine the melting temperature. We benchmarked this new technique with experiments on the high-pressure melting of platinum (Pt). Our new Pt melting results are compared with several recent studies on the high pressure melt line of Pt which utilized different techniques to determine melting. The technique can readily be applied to other materials and offers great potential for the determination of accurate and precise melting temperatures.

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Contributing Institute(s):

1. PETRA-D (FS-PETRA-D)
2. FS-PETRA (FS-PETRA)
3. DOOR-User (DOOR ; HAS-User)

Research Program(s):

1. 631 - Matter – Dynamics, Mechanisms and Control (POF4-631) (POF4-631)
2. 6G3 - PETRA III (DESY) (POF4-6G3) (POF4-6G3)
3. FS-Proposal: II-20211051 (II-20211051) (II-20211051)
4. FS-Proposal: II-20230680 (II-20230680) (II-20230680)
5. TRIREME - TRansport in the InterioR of the Earth from Modelling and Experiments (101002868) (101002868)
6. HIDSS-0002 - DASHH: Data Science in Hamburg - Helmholtz Graduate School for the Structure of Matter (2019_IVF-HIDSS-0002) (2019_IVF-HIDSS-0002)

Experiment(s):

1. PETRA Beamline P02.2 (PETRA III)

Appears in the scientific report 2025

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Database coverage:
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